Box-forming machine



April 28, 1925.

D. WILKIE BOX FORMING MACHINE Filed June 16 I ATFORNEY Fatented Apr. 23 1925.

UNETEQ STATES mass-n PATENT orrics.

DAVID XVILKIE, CHATTANOOGA, TENNESSEE,-ASSIG-I-TOR TOTE-IE GUARDIAN SAV- INGS AND TBlUST COMPANY, OF CLEVELAND, OHIO, A. CORPORATION 6F OHIO.

BOX-FORMING MACHINE.

Application filed June 16,

Z '0 all whom it may concern:

Be it known thatI, DAVID VVILKrn, a subject of the King of Great Britain, and resident of, Chattanooga, in the county of Hanr ilton and State of Tennessee, have invented certain new and useful Improvements in llox-Forming Machines, of which the following is a specification.

This invention relates to box forming machinery and refers particularly to improve-- ments in extension dies for making special forms of boxes and the like.

It is one object of the invention to provide a convenient form of extension die for a paper pressing or clamping machine, whereby the material may be readily pressed into unusual and special forms and shapes.

Another object is to provide a hinged connection between parts of a die, so that the completed box may be easily withdrawn, and a fresh piece of material inserted.

Various other objects and advantages of the invention will be in part obvious from an inspection of the accompanying drawings and in part will be more fully set forth in the following particular description of the one form of mechanism embodying my in vention, and the invention also consists in certain new and novel features of construction and combination of parts hereinafter set forth and claimed.

Figure 1 is a view partly in section in side elevation of a machine and extension dle embodying features of'the invention;

Figure 2 is a portion end view of a portion of Figure 1; and V Figure 3 is a plan view of the die engaging face of the extension arm.

In the following description and in the appended claims, parts will be identified by specific names for convenience of expression, but such terms are intended to he generic in their application for similar parts and equiv alents. I 1

Referring to the drawings there is shown a heavy base casting 10 supporting the actuating mechanism. The base is provided on its front side with an.upwardlyextending pillar 11 to the front face of which is bolted a heavy casting or jaw post guide 12 co-- extensive with the height of the pillar 11. The guide 12is of channel shape and is provided with a relatively large pin 14 extending transversely therethrough. The channel shaped guide constitutes a relatively long 1924.. Serial No. 720,162.

vertically disposed guideway for a movable jaw post 1'? formed tofit snugly in the channel. The upper end of the post 17 is provided with a forwardly extending head 18 which constitutes a movable jaw cooperating with the fixed 13.

The pin 14: rides in vertically extending slots 21 in the jaw post 17 to assist in guiding the movable jaw post 17. The pin forms the upper end pivot of a'toggle, the lower end pivot of which comprises a foot 22 secured to the lower end of the movable jaw post 17, the foot 22 having astud 23 adjustably mounted for a limited amount of vertical movement. Mounted on the stud 23 is a pivotal joint 26.

The toggle mechanism comprises an upper link 27 pivotally connected at its upper end to the pin lat and pivotally connected to a lower link 28 by means of a connecting pin 29. The pin 29 is connected to a horlzontally disposed eccentric strap 30 which operatively interconnects thetoggle with an eccentric 31 loosely mounted on a drive shaft 32 mounted in hearings in the base 10. The shaft is connected to a source of power shown diagrammatically as a pulley and flywheel '33, through a conventional reducing gear connection 34. The eccentric 31 is driven from the shaft 32 through a ratchet 35 afiixed to the shaft 32 and a cooperating spring pressed pawl 37 By suitable means forming no part of the present invention, the pawl 37 may be withdrawn from the ratchet at certain times by the operation of a pedal 40, the said means comprising levers and reach rods 41.

For supporting one portion of the extension die there is bolted to the fixed post 12 a b "acket 50 having a substantially fiat upper face forming a platen, on which there is mounted a plate 51. The plate 51 has an upstanding bracket 52 upon. which there is pivotally mounted an arm 53 by means of a pivotal pin 54. The arm 53 may be moved into and out of the position shown in full. lines in Figure 1. The alternate position is shown in dot-dash lines.

The arm 53 is provided at its free end i with a removable head'YO affixed theretoin any suitable manner, and the face of said head which engages the opposed die is provided in its central portion with a recess or depression 71, which may be formed by a milling operation, or other suitable manner.

Secured to the lower face of the movable jaw 18 by means of a bolt 60, is a die plate (S1. The plate (31 is preferably positioned in a recess in the jaw 18, and cooperates with the arm 53 to form desired materials into shape.

In operation, assuming that the arm 53 is in the position indicated by the dot-dash lines on Figure 1, the material to be formed may be applied thereto.

The arm is then set into vertical position. The source of power being in operation, the operator steps on the pedal to. The mechanism is thus caused to go through one cycle of operation, and reciprocate the toggle actuating strap 30. The toggle links 27, 28 are thus operated and the pin 14: being fixed, the lower end of the movable aw post 17 is forced downwardly to close the jaws. The ma' erial held in the die is thus pressed as may be desired.

Thus it will be seen that I have invented a form of extension die for a compressing machine in which the material may be conveniently pressed into the usual fanciful forms and shapes. The completed. box or other product may be readily and easily w thdrawn and a fresh piece of material inserted. When glue or other adhesive material used to maintain the parts of the product formed on the device in desired position, the extension die herewith before shown and described operates with great eliiciency to cause the adhesive to stick. The combination of the surface of the extension die has been found to be particularly ad vantagcous in forming boxes and other products into desired shapes and for gluing parts thereof together. By the use of the structure of my invention clinging of the parts to the extension dies is effectively minimizet and the machine may be operated at an increased speed and produce superior product.

Adl

Having thus described my invention I claim:

1. In a paper box making machine, the con'ibination of a support, a fixed jaw carried thereby, means forming a jaw guideway, a movable aw slidably mounted in said guideway, means for reciprocating the movable jaw, a bracket carried by said support, and a pivoted arm carried by said bracket and engaging the movable jaw independently of said fixed jaw.

2. in a paper box making machine, the combination of a support, a fixed jaw member carried thereby, means forming a jaw guideway, a movable jaw slidably mounted in said guideway, a die secured to said movablejaw, means for reciprocating the movable jaw and said die, a bracket carried by the support, a pivoted die supported by said bracket and engaging the movable jaw die independently of said fixed jaw.

In a paper box making machine, the combination of a support, a material receiving jaw carried thereby, means forming a jaw guideway, a movable jaw slidably mounted in said guideway, a bracket secured to the support, and a die pivotally mounted on said bracket and coacting with the movable jaw to clamp therebetween a portion of the material being acted on.

4. In a paper box making machine, the combination of a support, a material receiving jaw carried thereby, means forming a jaw guideway, a movable jaw slidably mounted in said guideway, a die platen secured to the movable jaw, a bracket secured to the support, and a die pivotally mounted on said bracket and coacting with said die platen to clamp therebetween a portion of the material being acted on.

Signed at Chattanooga in the county of Hamilton and State of Tennessee this 6th day of June, A. D. 1924.

DAVID VVILKIE. 

